Marie Casciari practices almost exclusively in the area of employee benefits litigation. Marie Casciari also handles individual insurance matters, as well as some Social Security disability cases. Marie Casciari has handled all aspects of litigation at the state court, federal district court, and federal appellate court levels; and manages internal appeals under ERISA, and benefit claim submissions under group and individual benefit policies. Marie Casciari has argued before the United States District Court for the Northern District of Illinois and the United States Court of Appeals for the Seventh Circuit. Marie Casciari is an active participant in the American Bar Association Section of Labor and Employment, Employee Benefits Committee, and a contributing author to the Annual Report of the Employee Benefits Committee Subcommittee on Benefit Claims. Marie Casciari was selected for the American Bar Association Section of Labor and Employment Leadership Development Program in 2014. Marie Casciari is also the co-chair of the Chicago Bar Association Young Lawyers Section Health and Hospital Law Committee.